Willem Hendrik Jacques "Sheep" du Plessis (born 12 August 1993) is a South African rugby union player. He plays for the in the United Rugby Championship and for the in the Currie Cup. His regular playing positions are flanker or lock.
After representing the in the 2006 Under-13 Craven Week competition, he moved to Ermelo and subsequently represented the at the 2009 Under-16 Grant Khomo Week and 2011 Under-18 Craven Week tournaments. His performance in the latter tournament led to his selection in the 2011 South African Schools squad.
In 2012, he joined the and made twelve appearances for them in the 2012 Under-21 Provincial Championship competition.
Du Plessis made his senior debut for the in 2013, starting in the 110âÂÂ0 thrashing of the . He also started the game the following week in an equally impressive 89âÂÂ10 victory against the , a match that saw him score his first try, dotting down shortly after half-time.
In July 2013, the Blue Bulls announced that he signed a contract extension until 31 October 2015.
In July 2013, Du Plessis was named on the bench for the ' Super Rugby match against the and came on as a substitute to make his Bulls debut.
Du Plessis was included in the squad for the 2014 Super Rugby seasonto resign and made his Super Rugby start in a 31âÂÂ16 defeat to the in Durban.
Shortly before the 2015 Super Rugby season, the announced that Du Plessis would leave after the 2015 Currie Cup Premier Division to take up a two-year contract with French Top 14 side .
On 12 April 2021, Du Plessis has left Montpellier early to return to South Africa with the Bulls.
Du Plessis was included the South Africa Under-20 squad for the 2013 IRB Junior World Championship.
In May 2014, Du Plessis was one of eight uncapped players that were called up to a Springbok training camp prior to the 2014 mid-year rugby union tests.
Du Plessis also played some Varsity Cup rugby, representing the in the 2013 Varsity Cup competition.